Piston hole machining system of automobile brake cylinder
By designing a piston hole machining system that uses electric actuators and gear assemblies to adjust the injection angle, the problem of fixing the angle of the cooling lubricant was solved, thus improving tool life and machining accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-31
AI Technical Summary
In existing piston bore machining systems, the spray angle of the cooling lubricant is fixed, making it difficult to adjust according to different machining conditions, which affects tool life and machining accuracy.
A piston hole machining system comprising an electric actuator, a toothed plate, and a gear assembly was designed. The extension and retraction of the electric actuator drives the moving block to translate, thereby adjusting the spray angle of the nozzle and achieving flexible spraying of cooling lubricant.
It improves cooling and lubrication, extends tool life, and increases machining accuracy.
Smart Images

Figure CN224059346U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts processing technology, specifically to a piston hole processing system for automotive brake calipers. Background Technology
[0002] The brake caliper is an indispensable key component in the automotive braking system. It is mainly responsible for transmitting the hydraulic oil pressure generated by the master cylinder to the brake pads, thereby achieving the purpose of braking.
[0003] In the manufacturing process of automotive brake calipers, the machining of piston holes is one of the key steps, and its machining quality directly affects the performance and reliability of the brake caliper. Currently, the existing piston hole machining system has a fixed spray angle of coolant during the machining process, which is difficult to adjust according to different machining conditions. This results in poor cooling effect for the tool and workpiece, which can easily affect tool life and machining accuracy, and is not practical enough. Therefore, it is necessary to redesign a piston hole machining system for automotive brake calipers to address the above problems. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a piston hole machining system for automotive brake calipers. This system solves the problem that existing piston hole machining systems have a fixed spray angle for the cooling lubricant during machining, making it difficult to adjust according to different machining conditions. This results in poor cooling of the tool and workpiece, which can easily affect tool life and machining accuracy.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a piston hole processing system for automotive brake calipers, comprising a processing table, on the upper surface of which multiple fixing plates are fixedly installed, and a placement plate is fixedly connected to the end of each fixing plate. Multiple drainage holes are provided on the upper surface of the placement plate. A rotating shaft is rotatably mounted on the outer wall of the processing table via two connecting plates. A mounting sleeve is fixedly installed on the outer wall of the rotating shaft. A fixing sleeve is fixedly connected to the upper surface of the mounting sleeve via a connecting mechanism. A nozzle is fixedly installed inside the fixing sleeve. A rubber hose is fixedly installed on the outer wall of the nozzle. An electric push rod is fixedly installed on the outer wall of the processing table via a support mechanism. A moving block is fixedly installed at the telescopic end of the electric push rod. A toothed plate is fixedly connected to the outer wall of the moving block via a connecting mechanism. A gear meshing with the toothed plate is fixedly installed on the outer wall of the rotating shaft. A collection groove is provided on the outer wall of the processing table. A collection opening communicating with the collection groove is provided on the upper surface of the processing table. A collecting hopper that mates with the collection opening is fixedly installed on the inner wall of the collection groove. A collection box is slidably installed inside the collection groove.
[0008] Preferably, the connecting mechanism includes a connecting rod fixedly installed on the upper end face of the mounting sleeve, and the end of the connecting rod is fixedly connected to the outer wall of the fixed sleeve.
[0009] Preferably, the support mechanism includes a support plate fixedly installed on the outer wall of the processing table, and the electric actuator is fixedly installed on the upper end face of the support plate.
[0010] Preferably, the connecting mechanism includes a connecting rod fixedly installed on the outer wall of the movable block, and the end of the connecting rod is fixedly connected to the outer wall of the toothed plate.
[0011] Preferably, guide rails are fixedly installed on the inner walls of both sides of the collection tank, and sliding plates are slidably installed inside the two guide rails.
[0012] Preferably, a filter screen plate is fixedly connected to the ends of both slide plates, and a filter cloth is fixedly installed on the upper surface of the filter screen plate.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, this utility model provides a piston hole machining system for automotive brake calipers, which has the following advantages:
[0015] This invention incorporates components such as an electric actuator, a toothed plate, and gears. When the electric actuator is activated, its extension and retraction movement causes the moving block to translate. The moving block, through a connecting rod, pushes the toothed plate to move. Since the toothed plate and gear mesh with each other, the linear movement of the toothed plate is converted into the rotation of the gear, which in turn drives the rotating shaft and the nozzle to rotate, thereby changing the spray angle and greatly improving the cooling and lubrication effect. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the piston hole machining system for an automotive brake caliper proposed in this utility model;
[0017] Figure 2 for Figure 1 A schematic diagram of the vertical section structure;
[0018] Figure 3 This is a top view of the piston hole machining system for an automotive brake caliper proposed in this utility model.
[0019] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;
[0020] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B in the diagram;
[0021] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point C.
[0022] In the picture:
[0023] 1. Processing table, 2. Fixing plate, 3. Placement plate, 4. Connecting plate, 5. Rotating shaft, 6. Mounting sleeve, 7. Connecting rod, 8. Fixing sleeve, 9. Nozzle, 10. Rubber hose, 11. Support plate, 12. Electric actuator, 13. Moving block, 14. Connecting rod, 15. Tooth plate, 16. Gear, 17. Collection hopper, 18. Collection box, 19. Guide rail, 20. Slide plate, 21. Filter screen plate, 22. Filter cloth. Detailed Implementation
[0024] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0025] This utility model provides a technical solution for a piston bore machining system for automotive brake calipers:
[0026] Please see Figures 1-6 A piston hole machining system for automotive brake calipers includes a machining table 1. Multiple fixing plates 2 are fixedly mounted on the upper surface of the machining table 1. Each fixing plate 2 has a common fixed connection at its end to a placement plate 3. Multiple drainage holes are formed on the upper surface of the placement plate 3. A rotating shaft 5 is rotatably mounted on the outer wall of the machining table 1 via two connecting plates 4. A mounting sleeve 6 is fixedly mounted on the outer wall of the rotating shaft 5. A fixing sleeve 8 is fixedly connected to the upper surface of the mounting sleeve 6 via a connecting mechanism. A nozzle 9 is fixedly mounted inside the fixing sleeve 8, and a rubber seal is fixedly mounted on the outer wall of the nozzle 9. The processing table 1 has a flexible hose 10 and an electric push rod 12 fixedly installed on its outer wall via a support mechanism. A moving block 13 is fixedly installed on the telescopic end of the electric push rod 12. A toothed plate 15 is fixedly connected to the outer wall of the moving block 13 via a connecting mechanism. A gear 16 that meshes with the toothed plate 15 is fixedly installed on the outer wall of the rotating shaft 5. A collection groove is provided on the outer wall of the processing table 1. A collection opening that connects to the collection groove is provided on the upper surface of the processing table 1. A collection hopper 17 that cooperates with the collection opening is fixedly installed on the inner wall of the collection groove. A collection box 18 is slidably installed inside the collection groove.
[0027] Furthermore, the connecting mechanism includes a connecting rod 7 fixedly installed on the upper end face of the mounting sleeve 6, with the end of the connecting rod 7 fixedly connected to the outer wall of the fixed sleeve 8.
[0028] Furthermore, the support mechanism includes a support plate 11 fixedly installed on the outer wall of the processing table 1, and an electric actuator 12 fixedly installed on the upper end face of the support plate 11.
[0029] Furthermore, the connecting mechanism includes a connecting rod 14 fixedly installed on the outer wall of the movable block 13, and the end of the connecting rod 14 is fixedly connected to the outer wall of the toothed plate 15.
[0030] Furthermore, guide rails 19 are fixedly installed on the inner walls of both sides of the collection tank, and sliding plates 20 are slidably installed inside the two guide rails 19.
[0031] Furthermore, a filter screen plate 21 is fixedly connected to the ends of the two slide plates 20, and a filter cloth 22 is fixedly installed on the upper surface of the filter screen plate 21.
[0032] In practical use, the working principle of this utility model is as follows:
[0033] The end of the rubber hose 10 can be fixedly connected to the outlet pipe of the lubricant pump in the processing system. When processing the workpiece, the workpiece can be placed on the upper surface of the placement plate 3 and clamped and fixed by the clamping assembly in the processing system. When processing the workpiece, the lubricant pump is started, and the cooling lubricant is continuously delivered to the nozzle 9 through the rubber hose 10, and then sprayed precisely into the processing area in a mist. At the same time, the power unit of the processing equipment is turned on, and the cutting tool starts cutting the piston hole at high speed. During the processing, the operator can control the operation in a timely manner according to the actual processing situation. When it is necessary to adjust the spray angle of the cooling lubricant to better cool specific parts of the tool or the key machining surface of the workpiece, the extension rod of the electric actuator 12 extends or retracts, driving the moving block 13 to move smoothly along a predetermined direction. The moving block 13 pushes the toothed plate 15 to move synchronously through the connecting rod 14. Since the toothed plate 15 and the gear 16 are tightly meshed, the linear motion of the toothed plate 15 is converted into the circumferential rotation of the gear 16, which in turn causes the rotating shaft 5 to rotate. The mounting sleeve 6, connecting rod 7 and fixing sleeve 8 connected to the rotating shaft 5 also rotate together, ultimately realizing the flexible adjustment of the spray angle of the nozzle 9.
[0034] As processing continues, the chips generated from cutting and the coolant / lubricant mixed with the chips, under the influence of gravity, pass through multiple holes on the upper surface of the placement plate 3 and fall directly into the collection opening on the upper surface of the processing table 1. Subsequently, guided by the collecting hopper 17, these chips and coolant / lubricant flow together into the collection tank. In the collection tank, the filter screen plate 21 and filter cloth 22 play a crucial role. The filter cloth 22, with its fine mesh structure, effectively intercepts the chips, while the coolant / lubricant passes through the pores of the filter cloth 22 and the filter screen plate 21 and flows into the collection tank below. The cooling and lubricating fluid is temporarily stored in the collection box 18. When the fluid level in the collection box 18 reaches a certain level, the processing operation can be paused. The collection box 18 can be gently pulled out along the guide rail 19, and the cooling and lubricating fluid can be transferred to a special recycling and treatment device. After a series of purification processes such as sedimentation and filtration, the cooling and lubricating fluid can be transported to the inlet of the lubricating fluid pump again to achieve recycling and effectively reduce production costs. The chips intercepted on the filter cloth 22 can be cleaned in a centralized manner to avoid chip accumulation from adversely affecting the subsequent operation of the processing system.
[0035] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.
Claims
1. A piston bore machining system for automobile brake caliper, comprising a machining table (1), characterized in that, The upper end face of the processing table (1) is fixedly installed with a plurality of fixed plates (2), the end of each fixed plate (2) is fixedly connected with a placing plate (3), a plurality of leakage holes are formed in the upper end face of the placing plate (3), the outer wall of the processing table (1) is rotatably installed with a rotating shaft (5) through two connecting plates (4), the outer wall of the rotating shaft (5) is fixedly installed with an installation sleeve (6), the upper end face of the installation sleeve (6) is fixedly connected with a fixed sleeve (8) through a connecting mechanism, the inside of the fixed sleeve (8) is fixedly installed with a spray head (9), the outer wall of the spray head (9) is fixedly installed with a rubber hose (10), the outer wall of the processing table (1) is fixedly installed with an electric push rod (12) through a supporting mechanism, the telescopic end of the electric push rod (12) is fixedly installed with a moving block (13), the outer wall of the moving block (13) is fixedly connected with a toothed plate (15) through a linking mechanism, the outer wall of the rotating shaft (5) is fixedly installed with a gear (16) engaged with the toothed plate (15), the outer wall of the processing table (1) is formed with a collecting groove, the upper end face of the processing table (1) is formed with a collecting opening communicated with the collecting groove, the inner wall of the collecting groove is fixedly installed with a collecting hopper (17) matched with the collecting opening, and the inside of the collecting groove is slidably installed with a collecting box (18).
2. A piston bore machining system for a brake caliper of a vehicle as defined in claim 1, wherein The connecting mechanism comprises a connecting rod (7) fixedly installed on the upper end face of the installation sleeve (6), and the end of the connecting rod (7) is fixedly connected with the outer wall of the fixed sleeve (8).
3. A piston bore machining system for a brake caliper of a vehicle as defined in claim 2, wherein The supporting mechanism comprises a supporting plate (11) fixedly installed on the outer wall of the processing table (1), and the electric push rod (12) is fixedly installed on the upper end face of the supporting plate (11).
4. A piston bore machining system for a brake caliper of a vehicle as defined in claim 3, wherein The linking mechanism comprises a linking rod (14) fixedly installed on the outer wall of the moving block (13), and the end of the linking rod (14) is fixedly connected with the outer wall of the toothed plate (15).
5. A piston bore machining system for a brake caliper of a vehicle as defined in claim 4, wherein The inner walls of the two sides of the collecting groove are fixedly installed with guide rails (19), and the interiors of the two guide rails (19) are slidably installed with sliding plates (20).
6. A piston bore machining system for a brake caliper of a vehicle as defined in claim 5, wherein The ends of the two sliding plates (20) are fixedly connected with a filter screen plate (21), and the upper end face of the filter screen plate (21) is fixedly installed with filter cloth (22).